🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.56 AU - 0.74 AU

Year: 196 Days

Day: 21.1 Hours

Environment

Temp: 195 °C

Axial Tilt: 38.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,183,560 km

• M1: 14,511 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.79 AU - 1.05 AU

Year: 331 Days

Day: 44.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 20.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.9 AU - 2.36 AU

Year: 1165 Days

Day: 12.2 Hours

Environment

Temp: -75 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.1

Radius: 14.4

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.04 AU - 7 AU

Year: 6239 Days

Day: 5.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,183,560 km

• M1: 179,069 km (0.032 R)
• M2: 628,909 km (0.085 R)
• M3: 1,104,182 km (0.115 R)
• M4: 1,733,540 km (0.108 R)
• M5: 2,392,220 km (0.109 R)
• M6: 2,903,695 km (0.119 R)
• M7: 3,508,668 km (0.083 R)
• M8: 4,038,993 km (0.088 R)
• M9: 4,574,104 km (0.099 R)
• M10: 5,103,980 km (0.107 R)
• M11: 6,978,142 km (0.099 R)
• M12: 10,553,831 km (0.052 R)
• M13: 11,899,763 km (0.103 R)
• M14: 12,468,983 km (0.107 R)
• M15: 13,868,471 km (0.098 R)
• M16: 14,392,961 km (0.087 R)
• M17: 16,683,155 km (0.068 R)
• M18: 20,459,154 km (0.103 R)
• M19: 22,546,045 km (0.039 R)
• M20: 23,566,901 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.5

Radius: 11.4

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 6.6 AU - 7.8 AU

Year: 7240 Days

Day: 11.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,183,560 km

• M1: 143,913 km (0.028 R)
• M2: 751,580 km (0.086 R)
• M3: 1,570,329 km (0.115 R)
• M4: 2,931,969 km (0.107 R)
• M5: 3,679,659 km (0.045 R)
• M6: 4,470,433 km (0.05 R)
• M7: 5,077,501 km (0.113 R)
• M8: 5,552,923 km (0.098 R)
• M9: 6,025,503 km (0.098 R)
• M10: 6,559,119 km (0.105 R)
• M11: 6,979,788 km (0.074 R)
• M12: 7,797,939 km (0.106 R)
• M13: 8,190,483 km (0.107 R)
• M14: 9,143,871 km (0.057 R)
• M15: 9,759,466 km (0.053 R)
• M16: 10,591,230 km (0.113 R)
• M17: 11,824,216 km (0.115 R)
• M18: 13,041,045 km (0.103 R)
• M19: 14,810,638 km (0.107 R)
• M20: 18,061,998 km (0.092 R)
• M21: 18,612,069 km (0.066 R)
• M22: 19,817,828 km (0.09 R)
• M23: 20,476,807 km (0.111 R)
• M24: 23,421,940 km (0.083 R)
• M25: 24,241,587 km (0.113 R)
• M26: 26,286,739 km (0.025 R)
• M27: 26,726,856 km (0.091 R)
• M28: 29,001,791 km (0.049 R)
• M29: 34,983,013 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.5

Radius: 6.7

Gravity: 11.8 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 13.4 AU - 19.56 AU

Year: 25071 Days

Day: 24.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,183,560 km

• M1: 138,528 km (0.106 R)
• M2: 488,886 km (0.09 R)
• M3: 813,064 km (0.037 R)
• M4: 1,661,883 km (0.091 R)
• M5: 2,144,186 km (0.087 R)
• M6: 3,242,833 km (0.055 R)
• M7: 5,196,282 km (0.099 R)
• M8: 10,778,227 km (0.106 R)
• M9: 11,290,450 km (0.045 R)
• M10: 15,501,182 km (0.095 R)
• M11: 22,561,752 km (0.11 R)
• M12: 24,914,777 km (0.086 R)
• M13: 28,020,130 km (0.113 R)
• M14: 28,622,112 km (0.11 R)
• M15: 31,374,114 km (0.106 R)
• M16: 31,892,770 km (0.119 R)
• M17: 46,791,372 km (0.113 R)
• M18: 62,824,075 km (0.118 R)
• M19: 70,277,489 km (0.115 R)
• M20: 70,942,452 km (0.082 R)
• M21: 74,330,544 km (0.064 R)
• M22: 76,882,534 km (0.062 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 11,702 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit